Metal accessory heat treatment equipment for wastewater treatment

Abstract

The invention relates to the technical field of heat treatment, and discloses metal fitting heat treatment equipment for wastewater treatment, which comprises a heat treatment furnace, a plurality of cylinders are arranged on the outer wall of the heat treatment furnace, the telescopic ends of the cylinders are fixedly connected with a furnace door, the furnace door is hermetically and rotatably connected with a rotating shaft, and one end of the rotating shaft is provided with a rotating motor; a limiting table is slidably connected into the heat treatment furnace, a fixing table is arranged on one side of the limiting table, a connecting plate is fixedly connected between the limiting table and the fixing table, and rotating columns are rotationally connected to the outer walls of the opposite sides of the limiting table and the fixing table. The two ends of a metal pipe needing heat treatment can be clamped, the contact area can be greatly reduced through contact between the clamping balls and the surface of the metal pipe, meanwhile, part of the clamping balls can be continuously lifted up and then clamped again, and the heat treatment efficiency is improved. Therefore, the situation that the clamping contact position cannot make full contact with gas in the heat treatment furnace to affect the heat treatment effect can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of heat treatment, and particularly relates to a heat treatment device for metal fittings used in wastewater treatment. Background Art

[0002] In wastewater treatment, metal fittings are required to convey, filter, flocculate, etc. the wastewater. For example, metal pipe fittings are a commonly used metal fitting, and heat treatment is one of the most important steps in the forming process of metal pipe fittings.

[0003] Chinese Patent with the publication number CN219010391U discloses a heat treatment device for metal pipe fittings, which improves the heat distribution uniformity of metal pipe fittings, enhances the convenience of taking and placing metal pipe fittings, and improves work efficiency; it includes a heating chamber, a support table, multiple sets of legs, and multiple sets of shifting wheels. A taking and placing opening is provided at the right end of the heating chamber. The bottom end of the support table is connected to the top ends of the multiple sets of legs, and the multiple sets of shifting wheels are respectively rotatably installed at the lower parts of the outer side walls of the multiple sets of legs; it also includes a driving device, a sealing device, a rotating shaft, a turntable, and a frame. The middle part of the rotating shaft is rotatably installed on the support table. A driving device is arranged at the bottom of the heating chamber for driving the rotation of the rotating shaft. The bottom end of the turntable is concentrically connected to the top end of the rotating shaft, the frame is installed on the top end of the turntable, and the sealing device is installed at the right end of the heating chamber for sealing the taking and placing opening of the heating chamber. However, when heat treating metal pipe fittings, the metal pipe fittings are directly placed on the frame, which causes a part of the surface of the metal pipe fittings to be blocked, so that this part of the area cannot fully contact with the gas in the heating chamber, thus affecting the heat treatment effect of the metal pipe fittings.

[0004] In view of this, the present invention provides a heat treatment device for metal fittings used in wastewater treatment to solve the problems existing in the above-mentioned prior art. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art and provide a heat treatment device for metal fittings used in wastewater treatment.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions: A heat treatment device for metal fittings used in wastewater treatment, comprising a heat treatment furnace. A plurality of cylinders are arranged on the outer wall of the heat treatment furnace, and the telescopic ends of the plurality of cylinders are fixedly connected with a furnace door. A rotating shaft is hermetically and rotatably connected to the furnace door, and a rotating motor is arranged at one end of the rotating shaft. A limiting platform is slidably connected inside the heat treatment furnace, and a fixed platform is arranged on one side of the limiting platform. A connecting plate is fixedly connected between the limiting platform and the fixed platform, and rotating columns are rotatably connected to the outer walls of the opposite sides of the limiting platform and the fixed platform. The other end of the rotating shaft is fixedly connected with the rotating column on the fixed platform. Mounting discs are fixedly connected to the outer walls of the opposite sides of the two rotating columns, and a plurality of swing plates are equally spaced and hinged to the outer walls of the mounting discs. One end of each swing plate is fixedly connected with a receiving cylinder, and a sliding rod is slidably connected to one end of each receiving cylinder facing the center of the mounting disc. Clamping balls are fixedly connected to the ends of the sliding rods facing the center of the mounting disc, and a sliding plate is fixedly connected to the other end of the sliding rod. A high-temperature spring one is fixedly connected between the sliding plate and the receiving cylinder. A pressing mechanism is arranged on each swing plate, and a jacking mechanism is arranged on the outer walls of the opposite sides of the limiting platform and the fixed platform.

[0007] Further, the pressing mechanism includes an L-shaped plate. A hollow cylinder two is slidably connected to the outer wall of each L-shaped plate, and a threaded rod two is rotatably connected to the side of the hollow cylinder two close to the swing plate. A knob two is fixedly connected to the outer wall of the threaded rod two, and one end of the threaded rod two is rotatably connected to a rotating base.

[0008] Further, sliding grooves are formed in the outer walls of the swing plates, and sliders are slidably connected to the inner walls of the sliding grooves. The rotating base is hinged to the corresponding slider.

[0009] Further, limiting discs are fixedly connected to the outer walls of the hollow cylinders two, and a plurality of high-temperature springs two are fixedly connected between the limiting discs and the L-shaped plates. Balls are fixedly connected to the other outer walls of the hollow cylinders two.

[0010] Further, the jacking mechanism includes a plurality of hollow cylinders one. A threaded rod one is rotatably connected to one side of each of the plurality of hollow cylinders one, and a knob one is fixedly connected to the outer wall of the threaded rod one. A top disc is arranged on one side of the plurality of hollow cylinders one, and two arc-shaped slopes are symmetrically arranged on the top disc. One end of each of the threaded rods one is rotatably connected to the outer wall of the top disc.

[0011] Further, the sliding plate is hermetically and slidably connected to the inner wall of the receiving cylinder, and a through hole is arranged in the middle of the sliding plate. An air delivery channel is arranged inside the sliding rod. The clamping ball is hollow inside, and a plurality of exhaust holes are arranged on the outer wall of the clamping ball.

[0012] Further, a plurality of notches are formed at the ends of each exhaust hole facing the outside. The two ends of the air delivery channel are respectively communicated with the through hole and the hollow clamping ball. A one-way intake valve is arranged on the outer wall of the receiving cylinder.

[0013] Furthermore, two fixing plates are fixedly connected to the outer wall of the top of the connecting plate located below, and a bidirectional threaded rod is rotatably connected between the two fixing plates. One end of the bidirectional threaded rod is fixedly connected to a third knob, and threaded sliders are both threadedly slidably connected to the outer walls on both sides of the bidirectional threaded rod.

[0014] Furthermore, connecting plates are hinged to the outer walls of the tops of the two threaded sliders, and the tops of the two connecting plates are hinged to the same lifting plate. A semi-circular groove is provided at the top of the lifting plate.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention can clamp both ends of the metal pipe to be heat-treated, and by contacting the clamping balls with the surface of the metal pipe, the contact area can be greatly reduced. At the same time, some clamping balls can be continuously lifted and then re-clamped, so as to avoid the situation that the clamping contact position cannot fully contact the gas in the heat treatment furnace and affect the heat treatment effect.

[0016] 2. During the process of lifting and then re-clamping the clamping balls, the gas in the heat treatment furnace can be sucked, and then sprayed out through the notches of each exhaust hole, so that the gas in the heat treatment furnace can be sprayed onto the clamping contact position, further improving the heat treatment effect.

[0017] 3. The metal pipe can be lifted through the semi-circular groove on the lifting plate, which is convenient for clamping and fixing work and greatly improves the work efficiency. Description of the Drawings

[0018] Figure 1 Structural schematic diagram of a metal fitting heat treatment device for wastewater treatment proposed in Embodiment 1; Figure 2 Structural schematic diagram of the limit table and fixed table of a metal fitting heat treatment device for wastewater treatment proposed in Embodiment 1; Figure 3 Structural schematic diagram of the first hollow cylinder of a metal fitting heat treatment device for wastewater treatment proposed in Embodiment 1; Figure 4 External structural schematic diagram of the installation disc of a metal fitting heat treatment device for wastewater treatment proposed in Embodiment 1; Figure 5 Internal structural schematic diagram of the accommodating cylinder of a metal fitting heat treatment device for wastewater treatment proposed in Embodiment 1; Figure 6 External wall structural schematic diagram of the L-shaped plate of a metal fitting heat treatment device for wastewater treatment proposed in Embodiment 1; Figure 7Schematic cross-sectional structure diagram of the accommodation cylinder of a heat treatment device for metal fittings used in wastewater treatment proposed in Embodiment 2; Figure 8 Schematic structure diagram of the exhaust hole of a heat treatment device for metal fittings used in wastewater treatment proposed in Embodiment 2; Figure 9 Schematic structure diagram of the connecting plate of a heat treatment device for metal fittings used in wastewater treatment proposed in Embodiment 3.

[0019] In the figure: 1, heat treatment furnace; 2, cylinder; 3, limit platform; 4, connecting plate; 5, fixed platform; 6, furnace door; 7, rotating shaft; 8, rotating motor; 9, hollow cylinder 1; 10, rotating column; 11, mounting disc; 12, threaded rod 1; 13, top disc; 14, knob 1; 15, accommodation cylinder; 16, swing plate; 17, sliding groove; 18, slider; 19, clamping ball; 20, sliding rod; 21, high-temperature spring 1; 22, sliding plate; 23, rotating base; 24, knob 2; 25, threaded rod 2; 26, hollow cylinder 2; 27, high-temperature spring 2; 28, limit disc; 29, sphere; 30, through hole; 31, one-way intake valve; 32, gas transmission channel; 33, exhaust hole; 34, notch; 35, bidirectional threaded rod; 36, lifting plate; 37, threaded slider; 38, connecting plate; 39, semi-circular groove; 40, fixing plate; 41, knob 3. Specific embodiments

[0020] The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments.

[0021] Embodiment 1, refer to Figures 1 - 6, A heat treatment device for metal fittings used in wastewater treatment, including a heat treatment furnace 1. A plurality of cylinders 2 are arranged on the outer wall of the heat treatment furnace 1, and the telescopic ends of the plurality of cylinders 2 are fixedly connected with a furnace door 6. A rotating shaft 7 is hermetically and rotatably connected to the furnace door 6, and a rotating motor 8 is arranged at one end of the rotating shaft 7. A limiting platform 3 is slidably connected inside the heat treatment furnace 1, and a fixed platform 5 is arranged on one side of the limiting platform 3. A connecting plate 4 is fixedly connected between the limiting platform 3 and the fixed platform 5. Rotating columns 10 are rotatably connected to the outer walls of the opposite sides of the limiting platform 3 and the fixed platform 5. The other end of the rotating shaft 7 is fixedly connected to the rotating column 10 on the fixed platform 5. Mounting discs 11 are fixedly connected to the outer walls of the opposite sides of the two rotating columns 10. A plurality of swing plates 16 are equally spaced and hinged to the outer wall of each mounting disc 11. A receiving cylinder 15 is fixedly connected to one end of each swing plate 16. A sliding rod 20 is slidably connected to one end of each receiving cylinder 15 facing the center of the mounting disc 11. A clamping ball 19 is fixedly connected to the end of the sliding rod 20 facing the center of the mounting disc 11. The other end of the sliding rod 20 is fixedly connected to a sliding plate 22. A high-temperature spring one 21 is fixedly connected between the sliding plate 22 and the receiving cylinder 15. A pressing mechanism is arranged on each swing plate 16. Lifting mechanisms are arranged on the outer walls of the opposite sides of the limiting platform 3 and the fixed platform 5. First, by adjusting some of the pressing mechanisms, the corresponding swing plates 16 are lifted, making these swing plates 16 in a vertical state, so as to facilitate placing the metal pipe to be heat-treated between the limiting platform 3 and the fixed platform 5. Then, by adjusting each pressing mechanism again, the plurality of clamping balls 19 are about to contact the surface of the metal pipe. Then, the lifting mechanisms contact each pressing mechanism and apply force to each pressing mechanism, so that each clamping ball 19 tightly abuts against the surface of the metal pipe, thereby clamping and fixing the metal pipe and fixing it between the limiting platform 3 and the fixed platform 5. Then, the cylinder 2 is used to move the furnace door 6 to send the metal pipe into the heat treatment furnace 1. At the same time, the furnace door 6 seals the heat treatment furnace 1. Then, the rotating motor 8 is started, and the rotating column 10 connected thereto is rotated through the rotating shaft 7, so that the metal pipe located in the heat treatment furnace 1 can be rotated. And during this rotation process, some of the clamping balls 19 can be lifted and then clamped again. And because the clamping balls 19 contact the surface of the metal pipe, the contact area can be greatly reduced, so that it can be avoided that the clamping contact position cannot fully contact the gas in the heat treatment furnace 1 and affect the heat treatment effect.

[0022] As a further scheme in the present invention, the pressing mechanism includes an L-shaped plate. A hollow cylinder two 26 is slidably connected to the outer wall of each L-shaped plate. A threaded rod two 25 is threadedly and rotatably connected to the side of the hollow cylinder two 26 close to the swing plate 16. A knob two 24 is fixedly connected to the outer wall of the threaded rod two 25. One end of the threaded rod two 25 is rotatably connected to a rotating base 23.

[0023] As a further solution of the present invention, the outer wall of the swing plate 16 is provided with a sliding groove 17, and the inner wall of the sliding groove 17 is slidably connected with a slider 18, the rotating base 23 is hinged with the corresponding slider 18, the threaded rod 25 can be rotated by the knob 24, and the length of the threaded rod 25 extending out of the hollow cylinder 26 can be adjusted, so that the initial angle of the swing plate 16 can be adjusted, which is convenient for placing the metal pipe that needs heat treatment, and at the same time, the clamping ball 19 can be brought into contact with the surface of metal pipes of different diameters.

[0024] As a further solution in the present invention, a limiting plate 28 is fixedly connected to the outer wall of the second hollow cylinder 26, and a plurality of high-temperature springs 27 are fixedly connected between the limiting plate 28 and the L-shaped plate. A sphere 29 is fixedly connected to the outer wall of the other side of the second hollow cylinder 26.

[0025] As a further solution of the present invention, the lifting mechanism includes a plurality of hollow cylinders 9, one side of each of which is threadedly connected to a threaded rod 12, and the outer wall of the threaded rod 12 is fixedly connected to a knob 14, one side of each of which is provided with the same top plate 13, and two arc slopes are symmetrically provided on the top plate 13, one end of the threaded rod 12 is rotatably connected to the outer wall of the top plate 13, and the length of the threaded rod 12 extending out of the hollow cylinder 9 can be adjusted by the knob 14, so that the length of the threaded rod 12 extending out of the hollow cylinder 9 becomes longer and longer, so that the top plate 13 can contact each sphere 29, and after the contact, the length of the threaded rod 12 extending out continues to be lengthened, so that a force can be applied to the hollow cylinder 26, so that the hollow cylinder 26 compresses the high-temperature spring 27 to move, and at this time, the slide in the slide groove 17 can be made The block 18 moves, so that the clamping ball 19 contacts the surface of the metal tube, and then the high-temperature spring 21 in the accommodating tube 15 is compressed until the metal tube is clamped and fixed between the limit platform 3 and the fixing platform 5; and when the rotating motor 8 rotates the metal tube in the heat treatment furnace 1 through the rotating column 10 connected to the rotating shaft 7, the spheres 29 on each hollow tube 26 will move on the top plate 13. When the spheres 29 pass through the arc slope on the top plate 13, the top plate 13 cannot apply force to the hollow tube 26 at this position. Therefore, under the action of the restoring force of the high-temperature spring 27, the clamping ball 19 is restored to the position where it will contact the surface of the metal tube at the beginning. When the spheres 29 are separated from the arc slope on the top plate 13, the clamping ball 19 can be tightly pressed against the surface of the metal tube again, completing the clamping and fixing work of the metal tube.

[0026] Working principle: First, by adjusting part of it through knob two 24, the second threaded rod 25 can be rotated, and the length of the second threaded rod 25 extending out of the second hollow cylinder 26 can be adjusted, so that the corresponding swing plate 16 can be lifted, making this part of the swing plate 16 in a vertical state, thus facilitating the placement of the metal tube to be heat-treated between the limit platform 3 and the fixed platform 5. Then, by rotating knob two 24 again, the second threaded rod 25 can be rotated, and the length of the second threaded rod 25 extending out of the second hollow cylinder 26 can be adjusted, so that multiple clamping balls 19 are about to contact the surface of the metal tube. Then, by rotating knob one 14, the length of the first threaded rod 12 extending out of the first hollow cylinder 9 can be adjusted, making the length of the first threaded rod 12 extending out of the first hollow cylinder 9 longer and longer. As a result, the top plate 13 can contact each sphere 29. After contact, continue to increase the length of the first threaded rod 12 extending out, so that a force can be applied to the second hollow cylinder 26, causing the second hollow cylinder 26 to compress the high-temperature spring two 27 and move. At this time, the slider 18 in the sliding groove 17 can be moved, so that the clamping balls 19 contact the surface of the metal tube. Then, the high-temperature spring one 21 in the receiving cylinder 15 is compressed until the metal tube is clamped and fixed between the limit platform 3 and the fixed platform 5. Then, the cylinder 2 is used to move the furnace door 6, sending the metal tube into the heat treatment furnace 1. At the same time, the furnace door 6 seals the heat treatment furnace 1. Then, the rotation motor 8 is started, and the rotation column 10 connected thereto is driven to rotate through the rotating shaft 7, so that the metal tube located in the heat treatment furnace 1 can rotate. The spheres 29 on each second hollow cylinder 26 will move on the top plate 13. When the sphere 29 passes through the arc slope on the top plate 13, at this time, the top plate 13 cannot apply a force to the second hollow cylinder 26 at this position. Therefore, under the restoring force of the high-temperature spring two 27, the clamping balls 19 return to the position where they were about to contact the surface of the metal tube at the beginning. When the sphere 29 leaves the arc slope on the top plate 13, the clamping balls 19 can be made to tightly abut against the surface of the metal tube again, completing the clamping and fixing work of the metal tube. And because the clamping balls 19 contact the surface of the metal tube, the contact area can be greatly reduced, thus avoiding the situation that the clamping contact position cannot fully contact the gas in the heat treatment furnace 1 and affecting the heat treatment effect.

[0027] Example 2, refer to Figures 7 - 8, a heat treatment device for metal fittings used in wastewater treatment. Compared with Embodiment 1, on the basis of Embodiment 1, the sliding plate 22 is in sealed sliding connection with the inner wall of the receiving cylinder 15, and a through hole 30 is provided in the middle of the sliding plate 22. An air delivery channel 32 is provided inside the sliding rod 20. The clamping ball 19 is hollow inside, and a plurality of exhaust holes 33 are provided on the outer wall of the clamping ball 19. When the metal pipe is clamped and fixed by a plurality of clamping balls 19, at this time, most of the sliding rod 20 is located in the receiving cylinder 15, and the high-temperature spring 21 in the receiving cylinder 15 is in a compressed state. During the process of rotating the clamped and fixed metal pipe, some of the clamping balls 19 will be lifted and then reset to clamp and fix the metal pipe again. During the process of lifting the clamping ball 19, the compressed high-temperature spring 21 resets, enabling the sliding plate 22 to slide downward in the receiving cylinder 15.

[0028] As a further scheme in the present invention, a plurality of notches 34 are provided at one end of each exhaust hole 33 facing the outside. The two ends of the air delivery channel 32 are respectively communicated with the through hole 30 and the hollow clamping ball 19. A one-way intake valve 31 is provided on the outer wall of the receiving cylinder 15. When the clamping ball 19 resets to clamp and fix the metal pipe again, the high-temperature spring 21 is compressed again, and the sliding plate 22 slides upward. In this way, through the one-way intake valve 31, the gas in the heat treatment furnace 1 can enter the space where the high-temperature spring 21 is located. Then, this gas enters the hollow clamping ball 19 through the through hole 30 and the air delivery channel 32, and then is discharged through the exhaust holes 33. During the process of the clamping ball 19 clamping the metal pipe, some of the exhaust holes 33 will contact the surface of the metal pipe, so that the gas will be discharged through the notches 34 of these exhaust holes 33, enabling the gas in the heat treatment furnace 1 to be sprayed onto the clamping contact position, further improving the heat treatment effect.

[0029] Working principle: When the metal tube is clamped and fixed by multiple clamping balls 19, most of the sliding rod 20 is located in the receiving cylinder 15 at this time, and the high-temperature spring I 21 in the receiving cylinder 15 is in a compressed state. During the process of rotating the clamped and fixed metal tube, some of the clamping balls 19 will be lifted and then reset to clamp and fix the metal tube again. During the process of lifting the clamping balls 19, the compressed high-temperature spring I 21 resets, enabling the sliding plate 22 to slide downward in the receiving cylinder 15. When the clamping balls 19 reset to clamp and fix the metal tube again, the high-temperature spring I 21 is compressed again, and the sliding plate 22 slides upward. This cycle continues, so that the gas in the heat treatment furnace 1 can enter the space where the high-temperature spring I 21 is located through the one-way intake valve 31. Then, this gas enters the hollow clamping ball 19 through the through hole 30 and the air delivery channel 32, and then is discharged through the exhaust hole 33. During the process of clamping the metal tube by the clamping balls 19, some of the exhaust holes 33 will contact the surface of the metal tube, so that the gas will be discharged through the notches 34 of these exhaust holes 33, enabling the gas in the heat treatment furnace 1 to be sprayed onto the clamping contact position, further improving the heat treatment effect.

[0030] Example 3, referring to Figure 9 , a metal fitting heat treatment device for wastewater treatment. Compared with Example 2, on the basis of Example 2, two fixing plates 40 are fixedly connected to the outer wall of the top of the lower connecting plate 4, and a bidirectional threaded rod 35 is rotatably connected between the two fixing plates 40. One end of the bidirectional threaded rod 35 is fixedly connected to a knob III 41. Threaded sliders 37 are both threadedly slidably connected to the outer walls on both sides of the bidirectional threaded rod 35. By rotating the knob III 41, the bidirectional threaded rod 35 can be rotated, so that the threaded sliders 37 on its outer wall approach or move away from each other.

[0031] As a further solution in the present invention, connecting plates 38 are hinged to the outer walls of the tops of the two threaded sliders 37, and the same lifting plate 36 is hinged to the tops of the two connecting plates 38. A semi-circular groove 39 is provided at the top of the lifting plate 36. When it is necessary to clamp and fix the metal tube to be heat-treated, first place the metal tube in the semi-circular groove 39 of the lifting plate 36, so that the metal tube can be stably located on the lifting plate 36. Then, rotate the bidirectional threaded rod 35 by rotating the knob III 41, enabling the two threaded sliders 37 on the bidirectional threaded rod 35 to approach each other. Through the connecting plates 38, the lifting plate 36 can be moved upward, so that the metal tube can be lifted, facilitating its clamping and fixing. After the clamping and fixing are completed, reverse-rotate the bidirectional threaded rod 35 by rotating the knob III 41 in the reverse direction, so that the lifting plate 36 resets.

[0032] Working principle: When it is necessary to clamp and fix the metal pipe to be heat-treated, first place the metal pipe in the semi-circular groove 39 of the lifting plate 36, so that the metal pipe can be stably located on the lifting plate 36. Then rotate the bidirectional threaded rod 35 by turning the third knob 41, which can make the two threaded sliders 37 on the bidirectional threaded rod 35 approach each other. Through the connecting plate 38, the lifting plate 36 can be moved upward, so that the metal pipe can be lifted, facilitating its clamping and fixing. After the clamping and fixing are completed, reverse the rotation of the bidirectional threaded rod 35 by turning the third knob 41 in the opposite direction, so that the lifting plate 36 returns to its original position.

[0033] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A heat treatment device for metal fittings used in wastewater treatment, comprising a heat treatment furnace (1). A plurality of cylinders (2) are arranged on the outer wall of the heat treatment furnace (1), and a furnace door (6) is fixedly connected to the telescopic ends of the plurality of cylinders (2). A rotating shaft (7) is sealingly rotatably connected to the furnace door (6), and a rotating motor (8) is arranged at one end of the rotating shaft (7). It is characterized in that, A limiting platform (3) is slidably connected inside the heat treatment furnace (1), and a fixed platform (5) is arranged on one side of the limiting platform (3). A connecting plate (4) is fixedly connected between the limiting platform (3) and the fixed platform (5). Rotating columns (10) are rotatably connected to the outer walls of the opposite sides of the limiting platform (3) and the fixed platform (5). The other end of the rotating shaft (7) is fixedly connected to the rotating column (10) on the fixed platform (5). Mounting discs (11) are fixedly connected to the outer walls of the opposite sides of the two rotating columns (10). A plurality of swing plates (16) are equally spaced and hinged to the outer wall of the mounting disc (11). One end of each swing plate (16) is fixedly connected to a receiving cylinder (15). A sliding rod (20) is slidably connected to one end of each receiving cylinder (15) facing the center of the mounting disc (11). Clamping balls (19) are fixedly connected to the ends of the sliding rods (20) facing the center of the mounting disc (11). The other ends of the sliding rods (20) are fixedly connected to a sliding plate (22). A high-temperature spring one (21) is fixedly connected between the sliding plate (22) and the receiving cylinder (15). A pressing mechanism is arranged on each swing plate (16), and a jacking mechanism is arranged on the outer walls of the opposite sides of the limiting platform (3) and the fixed platform (5).

2. The heat treatment device for metal fittings used in wastewater treatment according to claim 1, characterized in that, The pressing mechanism includes an L-shaped plate. A hollow cylinder two (26) is slidably connected to the outer wall of each L-shaped plate. A threaded rod two (25) is rotatably connected to the side of the hollow cylinder two (26) close to the swing plate (16). A knob two (24) is fixedly connected to the outer wall of the threaded rod two (25). One end of the threaded rod two (25) is rotatably connected to a rotating base (23).

3. The heat treatment device for metal fittings used in wastewater treatment according to claim 2, characterized in that, Sliding grooves (17) are formed in the outer walls of the swing plates (16), and sliders (18) are slidably connected to the inner walls of the sliding grooves (17). The rotating base (23) is hinged to the corresponding slider (18).

4. The heat treatment device for metal fittings used in wastewater treatment according to claim 3, characterized in that, Limiting discs (28) are fixedly connected to the outer walls of the hollow cylinders two (26). A plurality of high-temperature springs two (27) are fixedly connected between the limiting discs (28) and the L-shaped plates. Spheres (29) are fixedly connected to the outer walls of the other sides of the hollow cylinders two (26).

5. The heat treatment device for metal fittings used in wastewater treatment according to claim 4, characterized in that, The jacking mechanism includes a plurality of hollow cylinders one (9). A threaded rod one (12) is rotatably connected to one side of each of the plurality of hollow cylinders one (9). A knob one (14) is fixedly connected to the outer wall of the threaded rod one (12). A top disc (13) is arranged on one side of the plurality of hollow cylinders one (9). Two arc-shaped slopes are symmetrically arranged on the top disc (13). One end of each threaded rod one (12) is rotatably connected to the outer wall of the top disc (13).

6. The heat treatment device for metal fittings used in wastewater treatment according to claim 1, characterized in that, The sliding plate (22) is hermetically and slidably connected to the inner wall of the receiving cylinder (15). A through hole (30) is arranged in the middle of the sliding plate (22). An air delivery channel (32) is arranged inside the sliding rod (20). The clamping ball (19) is hollow inside, and a plurality of exhaust holes (33) are arranged on the outer wall of the clamping ball (19).

7. The heat treatment device for metal fittings used in wastewater treatment according to claim 6, characterized in that, A plurality of notches (34) are formed at one end of each of the exhaust holes (33) facing the outside. Both ends of the air delivery channel (32) are respectively communicated with the through hole (30) and the hollow clamping ball (19). A one-way intake valve (31) is arranged on the outer wall of the accommodating cylinder (15).

8. The heat treatment device for metal fittings used in wastewater treatment according to claim 1, characterized in that, Two fixing plates (40) are fixedly connected to the top outer wall of the connecting plate (4) located below, and a bidirectional threaded rod (35) is rotatably connected between the two fixing plates (40). One end of the bidirectional threaded rod (35) is fixedly connected to a knob three (41). Threaded sliders (37) are threadedly slidably connected to both outer walls of the bidirectional threaded rod (35).

9. The heat treatment device for metal fittings used in wastewater treatment according to claim 8, characterized in that, Link plates (38) are hinged to the top outer walls of the two threaded sliders (37), and the same lifting plate (36) is hinged to the tops of the two link plates (38). A semi-circular groove (39) is arranged on the top of the lifting plate (36).

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